Closure for containers



May 3, 1932. F. WIESE CLOSURE FOR CONTAINERS Filed July 20, 1929 Patented May 3, 1932 UNITED STATES PATENT OFFICE rnhuz wmsn, or nnnLm-wmxmnoar, GERMANY cnosunn roa oonrmnns Application filed July 20, 1929.8:1131 No. 879,845, and in Germany May 8, 1929.

@ontainers, tubes or the like containing paste of various kinds, glue and other substances, are often used in combination with distributing devices, brushes, tooth brushes or the like, so that they are advantageously so constructed as to be capable of being manipulated by one hand only. It is furthermore of great advantage .also to have the movable closure permanently connected to the tube, so that it cannot be lost or displaced.

The known tubes of this kind have they disadvantage that they are difiicult to handle and that the closure not always reliably closes the opening in' the tube neck.

The object of the present invention is to provide a closure for tubes, containers or the like which has the advantages mentioned above but which does not have the disadvantages also mentioned above.

To obtain this end, the closure according to the invention is constructed as a member bridging the neck of the tube. One end of this member being pivotally connected to a portion outside the neck of the tube, while the other end of this bridge-forming member "which may be swung with regard to the neck of the tube may be releasably locked at a' point also situated outside the tube neck.

Some preferred embodiments of the invention are shown for example in the accompanying drawings in which:

ig. 1 is a view of a tube having a closure according to the invention; Fig. '2 shows a plan of the device illustrated in Fig. 1; Fig. 3 is a plan view similar to Fig. 2, but showing the closure in the opened position; Fig. 4 is an elevation showing at the left hand side a portion of a tube with a closure on the neck and at the right hand side a portion of the tube with a neck but without a closure;

Figs. 5-7 are detail views of the closure; Fig. I

8 is a plan view of a modified construction of a container adapted to be provided with a closure according to the invention;.Fig. 9 shows an elevation of the modification shown in Fig. 8 without the closure; Fig. 10 is an elevation similar to Fig. 9, but with the closure in the eflective position; Fig. 11 shows agthreaded sleeve for connecting the closure to the neck of the tube; Figs. Hand 13 illus trate another modification of the closure and Fig. 14 shows the upper part of a tube carrymg projections serving to connect the 010- sure and to form an abutment for the latter respectively. p

It is to be understood that the closure according to the invention may be used in connection with vessels or containers of any kind having a neck with a discharge opening. In the following description the invention is e1;- plained in connection with a tube such as used for containing pastes or the like. The term tube is therefore to be understood as including enclosing vessels or containers of i any kind having a neck with a discharge opening.

As shown in Figs. 1-3 the body 1 of the tube carries the customary head 2 which in turn carries the neck 3 forming the delivery s out or nozzle. The latter-may have any esired cross section. The neck 3 preferably is drawn from the material of the tube in such a manner as to present a perfectly smooth surface with a strengthening portion 4 at the lower end. The so formed neck is adapted to be provided with a closure according to the present invention. This closure consists substantially of two parts one to be rigidly connected to the tube and another to be pivotally connected to said first mentioned art..-' The part of the closure which is to connected to the tube 1 is made from thin resilient wire bent'to a substantial U-shaped clamp the two flanges 5 of which are connected to a sleeve 6 in a manner to be described presently. The sleeve 6 has, as

will be seen from Figs. 5-7, a flange or rim I 7 at. its lower end adapted to cooperate with the strengthening portion 4 of the neck 3 to support the U-shaped clamp. This clamp is secured to the-tube lin a manner to be described presently. Pivotally connected to the web 8 of the Ushaped clamp is one end 9 of a bridge-shaped member the middle'portion 10 of which serves to cover the mouth of the neck 3 while the other end 11 of this bridgeshaped member may be releasably locked to a portion outside the'neck 3. The closure is fixed to the neck 3 of the tube 1 by inserting the clamp between downwardly bent portions 12 (see bottom plan view Fig. 7) of the rim 7 of the sleeve 6, pushing the sleeve 6 over the neck 3, so that the rim 7 contacts with the strengthening portion 4 of the neck 3, whereupon a conical die is pressed into the mouth of the neck 3. Simultaneously with the pressing down of the neck 3, the diametrically opposite portions 12 of the rim 7 are pressed downwards into the strengthening portion 4 of the neck 3. By the pressure exerted upon the die the upper part of the neck 3 is flared outwardly, thereby retaining the. sleeve 6 together with the closure device in the efiective position. Simultaneously the neck 3 is compressed by the pressure exerted by the die, so that the distance between the upper surface of the strengthening part 4 .of the neck 3 and the upper surface of the neck 3 is the same for all tubes. This will assure a perfectly tight closing of the tube." Another great advantage resulting from the use of a conical die for fixing the sleeve 6 to the neck 3 of the tube 1 is the fact, that the opening in the neck 3 will be larger on top than on the bottom, so that the material contained in the tube 1 has no tendency to continue to flow out when the pressure exerted upon the tube 1 for pressing out a quantity of the material has been released. ,Any waste of material as well as soiling of the tube is thereby effectively prevented.

14 of the U-shaped clamp.

the closure In the construction shown in Figs. 1-7 the free end 11 of the bridge-like closure member is locked by engagement with the bent or enlarged ends 13 of the resilient flanges 6 for securing to the neck 3, the connection may be made without employing such a sleeve.

Instead of using the sleeve As will be seen -from Figs. 8- 0, the head 15 of the tube 16 may be provide with two upwardly extending pro ections 17 and 18, one at each side of and in a distance from the neck 19 which in this case need not to be provided with a strengthening ring. These projections may be drawn from the material of the tube simultaneously the bridge-like member the middle portion 21 of which forms the closure proper is pivotally connected with its, end 22 to the web 23 of the clamp.: The arranged between the projections 17 and 18 so as. to straddle the neck 19, whereupon the projections 17 and 1 8 are bent or rolled towards the neck 19 and over said flanges 25, whereby the closure member is rigidly secured in the desired position. The free end 26 of the bridge-like member may be releasably locked to the bent free ends 27 of the flanges 25, so that in this case also the bridgelike member engages in its closed position two points outside the neck 19.

Another manner of securing the .closure to the tube is shown in Fig. 11. Here a sleeve 28 may be employedwhich is provided with with the neck 19. In this case.

flanges 25 of the clamp are a thread at its inner surface adapted to cooperate with a corresponding thread at the outer surface of the tube neck. The connection of the closure proper is similar to that already described.

Instead of making the closure of two parts connected together, the U-shaped frame carrying the bridge-like member may be omitted. In this case the rim 29 of the sleeve 30v is, as shown in Figs. 12 and 13, provided with 7 a projection 31 adapted to receive one end of the bridge-like member 32. After pressing or rolling the projection 31 over the free end of the member 32 the latter is pivotally connected to the sleeve 30 the rim 29 of which has another projection 33 at a point diametrically opposite the projection 31. The free end of the projection 33 is bent or rolled upward to form a stop over which the free end trated in'Fig. 12 and-numbered 32. The

second projection 39 forms an abutment for the free end of the bridge-like closure member and is adapted to lock said closure member in its closed position. The projections 38 and 39 are drawn from the material of the tube simultaneously with the neck 37. To assure proper locking of the closure, the construction is such that in all cases the distance m of the pivot axis of the bridge-like member from the middle axis of the tube neck 10 is substantially shorter than the distance 3 of that middle axis from the locking point of the closure, so that a greater lever arm comes to action, when the closure member is turned 'or swung about its hinge or a pivot 11 point to close the closure. Any waste of the material contained in the tube, or any soiling of the tube by material expressed therefrom is effectively prevented by the use of the clo-' I sure according to the'present invention. 1

What I claim is: 1. In combination with acontainer having a head of collapsible material, a neck portion consisting of a base piece and an offset smooth-walled discharge piece, a. closure 1 member consisting of an eye piece adapted to v be mounted upon said offset plece of said neck 1 portion to be pressed against said base piece of saidneck portion. and a U-shaped spring clamp having straight arms attached to a base 'rim of said eye piece and prevented from slippingfidewaysjby the turned down flanges of the ase rim, carrying a pivoted closure said eye portion being rigidly connected to said neck portion by pressing it downl Wards by means'of an accurately adjusted toot, patrix and matrix, against the base piece of the neck, simultaneously upsetting and compressing inseparabiy the material of said it eye portion and the neck portion, whereby at the same time the edge of the neck dis charge piece is expanded'outwards and bent or headed over the edge of the eye piece.

2.. In combination with a container having W a head of collapsible material, a neck. or

tion consisting of a base piece and an 0 set smooth-waded discharge piece, a closure member consisting of an e e piece adapted to be mounted upon said 0 set piece of said neck W portion and to be pressed against said base piece of said neck portion'and a closure cap properly pivoted to a projection at a base rim of said eye portion, said eye portion being rigidly connected to said neck portion by m pressing it downwards by means of an accurateiy adjusted tool, patrix and matrix, against the base piece of the neck, simultaneously upsetting and compressing inseparably the material of the eye portion and the 25 neck portion, whereby at the same time the edge of the neck discharge piece is expanded outwards and bent or headed over the edge of the eye piece.

In testimony whereof I aflix my si nature. an FRANZ WI ESE.

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